Aroma diffuser



FIG. 1 is a front elevational view of a aroma diffuser showing my newdesign;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in the drawings depict the portions of the aromadiffuser that form no part of the claimed design.

CLAIM The ornamental design for an aroma diffuser, as shown anddescribed.